Jet circulation washing machine



P 1952 T. F. RUSSELL 2,610,499

JET CIRCULATION WASHING MACHINE Filed March 1, 1947 2 SI-IEETS--ShEET 1Inventor- Thomas ERussell m Attorney P 1952 T. F. RUSSELL 2,610,499

' JET CIRCULATION WASHING MACHINE Filed March 1, 1947 2'SHEETS-Si-IEET 2Inventor 7 Thomas F. Russell By iMz/ yw Attorney Patented Sept. 16, 1952UNITED STATES PATENT oFF cc i Thomas 1E. Russell, Fergus, Ontario,Canada 1 Application March 1, 1947, Serial No. 731,785

' Claims.

This invention relates to washing machines and the object of theinvention is to devise a washing machine which will have a minimum ofmoving parts and which will wash linen quickly and effectively withouttearing or damaging the material. t r The washing machine art is an oldone and many washing machines perform the washing operation by means ofa dolly or a reciprocating or rotating tub. In accordance with otherconstructions the washing operation is performed by circulating washingfluid through the clothes. The difficulty with" the latter type ofwashing machine has beento obtain thorough circulation and recirculationof the washing fluid through every'part oi the linen to becleaned andwith this in view various arrangements have been devised and patented. vI have found that satisfactory results can be obtained'in a manner whichis most simple and efiective. Briefly, according to the presentinvention the jet of washing fluid is injected into the tub at apointadjacent the bottom thereof and at substantially-the geometrical centreof the bottom and a deflector plate is mounted in the tub above thepoint of injection of the washing fluid.

With this arrangement the articles to be cleaned circulate rapidly withthe washing fluid, rising at the centre of the tub, striking thedeflector plate, passing outwardly towards the side of the tub and thenpassing downwardly and inwardly to the bottom of the tub, from wherethey again are carried upwardly by the washing fluid and the process isrepeated.

The invention is hereinafter more particularly described and isillustrated by way of example in the accompanying drawings in which:

' Figure 1 is a vertical section through the machine on the line l-l inFigure 2;

Figure 2 is a horizontal section'through the machine;

s Figure 3 is a perspective view of the deflector plate;

Figure 4 is a perspective view of a modified form of the deflectorplate;

Figure 5 is a vertical section through the machine, showing a modifiedform thereof;

Figure 6 is a fragmentary section of the machine in Figure 5 showing amodified construction of deflector plate; and

Figure '7v is a fragmentary section of the machine in Figure 5 showing astill further modified construction'of deflector plate.

In the drawings corresponding numerals refer to corresponding parts inthedifferent figures Referring to Figures 1 to 3 inclusive, the tub! iscylindrical, but may be rectangular, spherical or spheroidal, and isprovided with atop or cover 2 removably mounted thereon,

Located substantially at the geometric 'centre of the'bottom ofthe tubis an opening through which extends a pipe 4, the "open end'of whichforms a jet or nozzle for injecting washing fluid into the tub. The endof this pipe 4 i s preferably located at or' close to the bottom of thetub, most preferably slightly above the bottom tcrprovide a spacebetween the jet opening and the bottom of the tub. However the pipe mayextendas much as half way from the bottom of the tubif sufficientwashing fluid is used to provide ample space between the end of thepipeand the de: flector plate (hereafter described) to permit freecirculation of the washing fluid and the linen in the tub; 'L

Surrounding the jet is a perforated screen 5 spaced above the bottom ofthe tub and extend ing downwardly into substantial contact at its outeredges with the bottom of the tub. Located in'the bottom of the tubadjacent to the pipeland beneath the perforated screen 5 is adrainageopening connected to a drainage pipe 6' which forms a closedcircuit with the fluid injecting pipe 4. In this circuit is any suitabletypeo'f liquid pump 1 preferably operated by a motor 85 1' Therefore,there is a continual recirculation. of: the washing fluid. Anotherdrainage opening (not shown) may be provided for draining off thewashing fluid after th'e'completion of the wash= ing operation.

A deflector plate 9 is provided, in practice preferably having adiameter-of substantially half the diameter of the tub and preferablyhavingfits undersurface or part thereof concaved. However, a deflectorplate of substantially the same diameter as the inside of the tub willoperate satisfactorily, provided there is sufficient space between theedge of the plate and the si'des of the tub to permit the plate to floatup and-down and to relieve the pressure of steam comingoff the hotwashing fluid. a

However, if the plate appreciably exceeds in diameter one-halfthediameter of the-inside'of the tub the suction caused by the downwardflow of washing fluids at the outside of the tub tends to suck it downbelow the surface of the washing fluid in the tub and to compress thelinen in the tub so as to interfere with the free circulationiof thewashing fluid and linen. In Figure 3 isshown tion'thereof adjacent itscentre' concavei; The

plate is circular and may be formed of metal or other suitable material.

The deflector plate is adapted to rest on the surface washing fluidabove the linen which is being washed, the term linen being used in ageneric sense to describe clothes, curtains and other material which maybe washed in a washing machine. {The flow of the washing fluid willretain the plate at orrnear thessurface. Best resultsare'obt'ained'bv'the use of considerably more washing fluid than isnecessary to cover the linen in the tub.

It is found in practice that if "the deflector plate is merely placed onthe surface of the washing fluid with its centresubstantially'vertically therdrainage:outletpipe 6. The perforatedscreen 5 :acts as -.-"a-.-guard to prevent the drainage pipe-15frmn-rbecomingestopped' up by :the material in the tub. The linen whichis :carried downwardly -.to the :bottom of'-the :tub :bythe washingifluid .is sucked into zthe centre and carried upwardly :by the washing:fluid which is ejected into thew-tub by :the ejector. :pipe' l.

Althou h the deflector :9 willrr'emainziniposb tionron' the surface ofthe-washing fillidilf properl y placed in :position without=a-nysupport, :it is desirableeco provide guidewmeans to, preventr-accidental displacement of the deflector plate, andthisaistaccomplished by :securing; a :rod -l O to :the centre of theupper :surface of the "deflector plate and extending :at ':right anglesto :the horizontalgplanerof the plate. A. hollow ztube H is Secured .tothe -centr'e*of the cover. :2 .:of :the stub and extendsdownwardlyatright angles thereto. "The rod -I 0 and the hollow tube 'H telescope'Sohstmprovide 'aivertieallyfloatingFmounting :fortheadeflectortplata'rretaining it iniits central loeationr'above the jetbut permitting :itrto move up: aindxdownr lonfzthe surface of thewashing fluid so. that it "will always remain ion the :surfafceofthem'ashingi fluid contained in thetub -and'"yet fitsiipositionmelativeto Zthe, ;tub and xthe top may change depending upon thecquantityxofwashingifluid contained'linthatub.

'i I'orget ithe .Tdesired circulatory ;action of -:the washing :fluid,it is :necessary that the deflector plate be :located on 501'ratthesurface :of Fthe washing:fluid,fbut within ::a :predetermined :lowand Chigh point; which icanreadilyibe:determined in practice,'ithe".fdeflector iplate nacts =efliciently regardless f fits. heightabove the bottom .ofythe tub fsoblong fas'ilt istrestin'g onithe:surface of the washing :flui'd and arranged above dzhe :injec'tor pipewith its centre locatedrsubstantiallyron the eentre line of the:inje'ctoripipe.

"In Fi'gure -'5 is shownr-ai'spheroi'dalatub, in? which the' plate 9acts :as=a closure .forithe tab :2 I .;It is -provided with -a" "flangeELS l-which extends through the opening in the tub, -:being' :rspaced"fromftlie edges of the opening ssuiflciently to permit thel flange -l 9to slide upzan'dzdown in the opening and to permi't the escape :of steambe- Figure "6 deflector iiilateizll iis mounted i011 bellows 12 securedto closure 24. The bellows expand to permit the plate to rest on thesurface of the washing fluid depending on the liquid level. The bellowsI2 are adapted to fold up within a recess formed by a flange 24 whichextends down from the closure 24 spaced from flange 22 around theopening in the tub 22. The plate 29 when in its uppermost position bearsagainst fflange'z l A tube I3 extends Lthrough flange 22 to permitescape of steam.

In Figure 7 the deflector plate is shown secured to flange 25 of theclosure 25. In this menstruation-the;position of the plate 39 is fixedrelative to the tub 23 and therefore in order that itmay operate thetubmust be filled until the surface of the washing fluid reaches theunder face of the plate 39.

lt' will be seen from the above that the objects of this invention havebeen attained in. a very simple and veffective .manner.

it :is thought .thatatherconstruction .and use of the invention -will beapparent iromthe above description of the various ,parts andtheirpuepose. It to be understood :that :the "form :of my invention herewithshown and described,.is to lee-taken as a preferredexample ofthe same,and that ,Various changes in .the shapawsize and arrangementof parts maybe resortedto, without departing. from v the spirit -of. my invention,.or .the scope of the.subjoined claims.

What I claim as :my -,invention:is:

.1. :.A machine for Washing linen.comprisingan imperforate :tub forholding ,linen and washing fluid, :said tub having a hottomand walls afilling .openingsfor. inserting linen,.:a: drainage open-. ing, ajetopening vertically-into :the tub;at zsubstantially the geometricalcentre :1ine-;and ,.di-- rected along theeentre line .to inject .washingfluid jinto zthe .tub,- 5a rdeflectonplate spaced from the jet, with.its centre'rlocatedesubstantially 1 on the :centreline ;of the tub-,;;uide-.means :for floatably. letaihing the deflection'plate ,in positionabove, the jet; :the' interior ,-,.of thetub -.-b ein-g unobstructed vtopro vide,. a --clear passageway :for fluidfrom the .jet;;to :thedeflector platathe .diameter of the jet opening being not more thanhalfthe diameterpf the tub and the {space thetween the j etqandr thewalls of the tub being -;also unobstructed whereby when the tubis;fi1led :Wifih fluid between the :jet; and ;the ;,defle.ctor plate:the

fluid entering .the tubythrough githe Jet :will:;induce .-a circulating,movement .Of :the fluid :along said centre line :to the; deflector:plate and moutwardly to the walls of-.:thetubj-andqbackwarmy and;;-inward1y -..to the 51617, J-carryine' :with iitiany linen which1111315 been placed in rthe tub, :and means foncirculatin.thefluidiromthe:drainage opening to the jet :and .sinj eating it:intozthefitub through the jet under pressure.

p .2. A ma0hinezfor washingllinen comprisingan imperforate tub forholding linen andzwa'shing fluid,,=;said;tubi:having .a bottom-andzsidenwalls, a. filling opening in the top thereof for inserting linen,:a drainage; opening adjacent :the .hottom thereof, a jet openingverticallyjntozthe .tub 1adjacentthe bottom :thereof .;:at,isubstantially vAthe centre line toiniect-;.washing :fluidupwardlyzinto the tub,;a deflector plate having. at least-mart .of itsunder: surface concaved and spaced above ;the jet with its centrelinelocated substantiallyaon the :vertical centre line --:of :the :tub,guide :means iorfioatably retaining the deflector :plate in .po-' sitionabove the jet, :-t'he interiorgofdsheitub'being unobstructed 1110:;.provide a :clear passageway ior fluidefrom the jet rtortheuieflectorl'plate. v:the -'di 5 ameter of the jet opening being not"more than half the diameter of the tub and the space between the jetand the walls of the tub being also unobstructed whereby when the tub isfilled with fluid between the jet and the deflector plate the fluidentering the tub through the jet-will induce a circulating movement ofthe fluid along said centre line to the deflector plate and outwardly tothe walls of the tub and baclzwardly and inwardly to the jet, carryingwith it any linen which has been placed in the tub, and means forcirculating the fluid from the drainage opening to the jet and injectingit into the tub through the jet under pressure.

3. A machine for washing linen as claimed in claim 2, including aclosure for the filling opening, said. guide means including a dependingmember on the closure and an upstanding member on the plate telescopingwith the depending member. I

4. A machine for Washing linen as claimed in claim 2, including aclosure for the filling opening, said guide means including a bellowssecured to the closure and the plate.

5. A machine for washing linen as claimed in 6 claim 2, including aperforated screen extending around the jet over the drainage opening andabove the bottom of the tub, said jet extending through said screen sothat there may be substantially unimpeded injection of washing fluid.

THOMAS F. RUSSELL.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number

